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Stems short, with many sheaths, soon thickened into fleshy pseudobulbs, which are 1-2-lvd.: lvs. large or elongated, plicate-veined; contracted to the petiole: scapes erect, simple, arising from the base of the pseudobulb: fls. racemose, medium-sized or rather large, very shortly pedicelled; bracts linear, usually rather long; sepals subequal, erect, finally spreading, lateral broader than the dorsal, forming a chin; petals similar to the dorsal sepal if not smaller; labellum somewhat articulate with the foot of the column, lateral lobes erect, surrounding the column, midlobe short, broad, surface smooth, lamellate or callous at the base; pollinia 4, ovoid: caps. oblong, erect. — About 30 species, natives of Trop. Amer.

Stems short, with many sheaths, soon thickened into fleshy pseudobulbs, which are 1-2-lvd.: lvs. large or elongated, plicate-veined; contracted to the petiole: scapes erect, simple, arising from the base of the pseudobulb: fls. racemose, medium-sized or rather large, very shortly pedicelled; bracts linear, usually rather long; sepals subequal, erect, finally spreading, lateral broader than the dorsal, forming a chin; petals similar to the dorsal sepal if not smaller; labellum somewhat articulate with the foot of the column, lateral lobes erect, surrounding the column, midlobe short, broad, surface smooth, lamellate or callous at the base; pollinia 4, ovoid: caps. oblong, erect. — About 30 species, natives of Trop. Amer.

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